__init__ is a special Python method that is automatically called when memory is allocated for a new object. The sole purpose of __init__ is to initialize the values of instance members for the new object. Using __init__ to return a value implies that a program is using __init__ to do something other than initialize the object. This logic should be moved to another instance method and called by the program later, after initialization.

There is no reason why the Rectangle class MUST return the area immediately upon initialization. This program logic should be moved to a separate method of the Rectangle class. The program can call the method later, after the object has successfully initialized.

classRectangle(object):def__init__(self,width,height):self.width=widthself.height=heightself._area=width*height@property# moved the logic for returning area to a separate methoddefarea(self):returnself._area

Note that the class must inherit from object now, since the property decorator only works for new style classes.